Carrier HH18HA147 Limit Switch L99H008 Simplified Serviceability: Designed with a

Simplified Serviceability: Designed with a thermoplastic seat module and bronze cage that allow for rapid in-line repairs

Whether you are performing a direct replacement or a new install

Rotation is easily adjusted by swapping any two of the three power leads at the contactor to match the fan blade's pitch requirements

this is an Open Air Over (OAO) motor

The York S1-3948-3051 Suction Line Service Valve is a critical OEM replacement part designed for field technicians maintaining York commercial and residential HVAC systems

Carrier HH18HA147 Limit Switch L99H008 Simplified Serviceability: Designed with aThe Carrier HH18HA147 Limit Switch is a critical safety component designed for precise thermal monitoring within furnace heat exchangers and air handlers. Engineered as a high limit protection device, this switch is a direct replacement for HH18HA147A and functions by opening the electrical circuit if internal plenum temperatures exceed safe operating parameters. This prevents thermal stress on the heat exchanger and ensures the system operates within